In this work,nanocomposites(poly(vinylidenefluoridetrifluoroethylenechlorotrifluoroethylene)/Graphene nanosheets)(P(VDF-TrFE-CTFE)/GNS)were fabricated via solution cast process.GNS were covalently functionalized with KH550 to improve their interfacial interactions with the terpolymer matrix P(VDF-TrFE-CTFE).Compared to neat terpolymer,significantly improved dielectric permittivity and low loss were observed for the composites.For instance,at 1 kHz the P(VDF-TrFE-CTFE)/GNS composites with 4%GNS possessed a dielectric permittivity of 144,over 14 times larger than that of neat terpolymer,while the loss was only 0.56.These findings represent an effective route to design potential dielectric polymer films for high-charge storage capacitors.
